Properties of Felsite lan Tephrite
ukuran gandum
grained nggoleki
medium kanggo nggoleki coarse grained
rengat
conchoidal
ora rata
porosity
banget kurang keropos
banget kurang keropos
luster
vitreous
subvitreous kanggo kurang
cleavage
non-ana
crenulation lan mrembet
kateguhan
ora kasedhiya
2.4
tartamtu gravitasi
2.6-2.7
2.86
Kapadhetan
2.6 g / cm 3
2.8-2.9 g / cm 3
resistance
tahan panas, impact tahan
tahan panas, impact tahan